.rigthContent {
    padding: 0px !important;
}

.ztree li a {
    height: 29px !important;
}
div#rMenu {
    position:absolute;
    visibility:hidden;
    top:0;
    background-color: #eee;
    text-align: left;
    padding: 2px;
}
div#rMenu ul li{
    margin: 1px 0;
    padding: 5px 10px;
    cursor: pointer;
    list-style: none outside none;
    background-color: #DFDFDF;
}